8. Ben – Rat
Use this name cautiously because Ben is not a friendly rat. In fact, Ben is the star a 1972 horror film of the same name. Befriended by a young boy named Danny, Ben uses his telepathic connection to his rat swarm to protect Danny from bullies.
Unfortunately, Ben cannot control his swarm and several violent incidents ensue. The police eventually destroy the swarm, but Ben survives and is tended to by Danny. This is a fitting name for the rat that has only one friend whom he protects at all costs.